Catalonia is bracing for its third heatwave of the summer, expected to last at least until Wednesday. Maximum temperatures will once again exceed 40ºC, particularly in western regions, while nighttime lows will not drop below 25ºC along the central and southern coast and pre-coastal areas. This extreme heat event will be accompanied by Saharan dust suspended across a large part of Catalonia.
The Meteorological Service of Catalonia (SMC) has also issued warnings for intense nighttime heat for tonight and tomorrow, affecting regions such as Baix Ebre, Montsià, Ribera d'Ebre, Baix Camp, and Tarragonès.
Saharan dust is a natural meteorological phenomenon that transports mineral particles from the Sahara Desert towards Southern Europe. Driven by winds, this phenomenon causes orange-tinted skies, reduces visibility, and significantly worsens air quality.
These fine desert particles contain allergens and irritants that can enter the lungs, exacerbating conditions like asthma and causing bronchial inflammation and respiratory crises. According to Dr. Joy St John, Executive Director of CARPHA, Saharan dust can be dangerous for young children, the elderly, and individuals with pre-existing lung or chronic cardiopulmonary conditions, as well as worsening symptoms for those with asthma, allergies, and COPD.
Given the poor air quality, it is recommended to stay indoors as much as possible, use a dust mask when outdoors, employ HEPA filters at home, always carry lung medication, and seek medical attention for any breathing difficulties.




